Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 49.1°F (9.5°C) in November to a wintry 37.6°F (3.1°C). An average low-temperature of 27.3°F (-2.6°C) is recorded during the nights in December.Humidity
In December, the average relative humidity in Wapella is 79%.Rainfall
The month with the least rainfall in Wapella is December, when the rain falls for 9.5 days and typically collects 1.89" (48mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Wapella, Illinois, in December, during 8 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Wapella, during the entire year, snow falls for 36.9 days and aggregates up to 14.76" (375mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Wapella, Illinois.On the first day of the month, sunrise is at 6:59 am and sunset at 4:30 pm. On the last day of December, in Wapella, sunrise is at 7:18 am and sunset at 4:40 pm CST.
Sunshine
In December, the average sunshine in Wapella is 4.5h.UV index
The months with the lowest UV index in Wapella are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Wapella?
What is the average humidity in December in Wapella?
What is the driest month in Wapella?
How much does it rain in Wapella in December?
How many days does it snow in December in Wapella?
What is the month with the shortest days in Wapella?
How many hours of daylight does Wapella have in December?
When are sunrise and sunset in December in Wapella?
How long on average sun shines in December in Wapella?
When is the lowest UV index in Wapella?
What is the UV index reading in December in Wapella?
Average temperature in December
Wapella, IL
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Wapella, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Wapella, IL
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Wapella, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Wapella, IL
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is December (1.89").
Average rainfall days in December
Wapella, IL
- Average rainfall days in December: 9.5 days
The months with the highest number of rainy days are May and July (20.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Wapella, IL
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Wapella, IL
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wapella, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Wapella, IL
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in December
Wapella, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Wapella, IL
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in December
Wapella, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Wapella, Illinois, USA
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